<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
       a{
           text-decoration: none;
       }
       div{
           text-decoration: underline;
       }
       p{
           text-decoration: line-through;
       }
       span{
           text-decoration: overline;
       }
    </style>
</head>
<body>
    <a href="#">a标签，去掉下划线</a>
    <div>div标签，添加下划线</div>

    <p>p标签,添加删除线</p>
    <span>span标签，添加顶滑线</span>
</body>
</html>